Drawing-table.



E. G. ROBERTS. DRAWING TABLE.

APPLICATION FILED MAY 6, 190a.

' Patented Apr. 20, 1909.

2 SHEETSSHEET 1.

a]; a l/412A war zoom E. c. ROBERTS. DRAWING TABLE. APPLICATION FILED MAY 6, 1908.

Patented Apr. 20, 1909.

ZSHEETS-SHEET 2,

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. anou ttoz 6 .0/ l oderl I Wit" @0060 EDWARD o; ROBERTS, or SALTVILLE, VIRGINIA DRAWING-TABLE.

No. 919,245.v

Specification oi Letters Patent.

Patented April 20,1909.

Application filed Kay 6, 1908. Serial No. 431,125.

To all whom it may concern:

Be it knownthat I, EDWARD C..RoBER'rs,

' a citizen of the United States, resident of Saltville, in the county of Smyth and State of Virginia, have made a certain new and use-- ful Invention in Drawing-Tables; and I declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it appertains to make and use the invention,

reference being had to the accompanyingg drawings, and to characters of reference markedthereon, which form apart of this specification. J I

Figure 1 is a section on the line 11, Fig. 2. Fig. 2 is a rear view of the table. Fig. 3 is a front view of the same. Fig. 4 is an end .view of the same. Figs. 5, 6, and 7 are dotail plan views of taps having glass inserhaving an angular relation to each other.

tions of different sizes. Fi 8 is a section on the line 88, Fig. 9. 9 is-a detail plan view of one of the fasteningclip's for the paper, as applied. Figs. 10 and 11 are detail views of one ofthe fastening studs for the table top as applied.

This invention has relation to drawing tables, having for its object the provision of improved means whereby tracings may be readily made upon. thicker paper than is commonly used and with less injury or strain upon the eyes, and whereby pencil work may be more clearly seen.

With this object in view the invention don sists in the novel construction and combinations of parts as hereinafter set forth;

In the accompanying drawings, illustrating the invention, the letter a, designates the table, which is composed of a top I), a bottom wall c, having an inclination of forty-five degrees to the horizontal and intersecting such top at the rear edge thereof, and a rear wall (1, composed of two plane sections d, d, meeting at thevertical center of said rear wall and In this manner a casing of general triangular prismatic form is provided, inasmuch as the sections of the rear wall are but 1 slightly bowed out of line. The upper ed es of the side walls of the table are provide with fastoning studs or'screws e, the heads of which are se arated from the edge surfaces of the slightly to one side will removably secure the top in position, This top is formed of a mar ginal frame of wood or other material having a transparent glass plate insertion, and the.

bottom wall 0, and rear wall sections (1, d, have mirror linings c, and d d, respectively. A plurality of incandescent electric bulbs g, g, are located at the intersection of the sections of said rear wall in' a horizontal line, suitablewiring being employed, as shown at In this manner the rearward directed rays of light from the incandescent bulbs will be reflected forward by the inclined mirrored rear Wall sections upon the mirror-lined bottom wall, which will reflect such light upward through the transparent glass plate insertion of the top wall. ward directed ra s of li ht from the bulbs will be reflected y the ottom wall mirror through the transparent top wall plate.

At the same time the forreceived the vertically adjustable stems i,

secured at their upper portions to the bottom wall of the table at t. These-stems are each provided with'a series of rack teeth 1', which have engagement with the teeth of pinions j, the shaft 7' of which has bearings 1n the column 72., and is provided with a central hand wheel 7:. Pawl devices k, having engagement with the teeth of the inions are employed to-fix the adjustment 0 the table. These pawl devices are pivoted to and carried by extensions h of the standards it, 7t.

For the purpose of accommodating, tracings or drawings of varying ,sizes the to wall 0 plate-lamay be removed and a similar pla e b, or 6 having a smaller glass late drawing instruments, and ventilators for the table are provided at m.

At each corner of the tening the'pa er is provided, as shown at n,

.such clip, which is composed of an oblong piece of flat metal, being secured at outer end to the frame of the top by a screw 12/, and having vertical s rmg movement to a top I) a clip forfas-L slight degree upon sue screw n, in a recess a n, in the top rame, such movement being controlled by an adjustment screw 0, enga g I 5. In a drawing table, the combination ing the inner end portion of the cli and having a nut 0, at its lower end fitting closely within a similarly formed seat 0 of the top frame. The aper passes at the corner thereof over t e rounded corner 1), of the recess n (such corner bemg shown as provided with a short rounded metal or wire lining) and under the clip n, within the recess n below the same, adjustment of thescrew 0, being first made to raise the clip and admit the paper thereunder. Upon reverse adjustment of the screw 0, the clip is lowered within the recess n to bear at its end or inner edge against the downturned corner por tion q, of the paper, such corner portion being compressed between the inner end or edge of the clip and the end wall 12., of the recess n to fasten the paper securely, thus doing away with the use of thumb tacks or perforation or gluing of thepaper.

Having described he invention, what I claim and desire to secure by Letters Patent is:

1. In a drawing table, the combination with a depending casing having a top wall provided with a transparent plate insertion, an inclined bottom wall provided with a mirror lining, and a rear wall provided with a mirror lining, said rear and bottom walls being joined to and substantially intersecting said top wall and each other, of an adjustable pedestal support located in front of and under the inclined bottom wall.

2. In a drawing table, the combination with a depending casing of general triangular prismatic form having a top wall provided with a transparent plate insertion, an

inclined bottom wall rovided with a mirror lining, and a rear wa provided with a mirtwo plane sections having an an ar rela-,

tion to each'other.

4. In a drawing table, the combination with a casing having a top wall provided with a transparent plate insertion, an inclined bottom wall rovided with a mirror lining,

' cated in front and a rear wa provided with a mirror lining and composed .oftwo plane sections having an angular relation to each other, said rear and bottom walls being joined to and substantiall' intersecting said top wall and each other, 0 an adjustable pedestal support 10- of and under the inchned bottom wall.

l with a casing having a top wall provided with a transparent plate insertion, an inclined bottom wall provided with a mirror lining, and a front wall provided with a mirror lining, saidrear and bottom walls being joined to and substantially intersecting said top wall and each other, of a support having a-hollow column, a stem having adjustment in said column and attached at the up er end thereof to the inclined bottom wal of the table, means for adjustment of said stem and table and means for fixing such. adjustment.

6. In a drawing table, the combination with a casing having a top wall provided with a transparent plate insertion, an inclined bottom wall provided with a mirror lining, and a rear Wall provided with a mirror lining, said rear and bottom walls bein joined to and substantially intersecting sait top wall and each other, of double hollow colmnns, stems having adjustment in said columns and attachment at the upper ends thereof to said inclined bottom wall of the table, said stems having rack teeth, a 'hori zontal shaft having bearings carried by said columns, provided with pinions at the end portions thereof having engagement with the rack teeth of said stems, and a hand wheel, and'means for fixing the adjustment of said stems and table.

7. In a drawing table, the combination of .a casing having a removable top wall provided with a transparent late insertion, an inclined bottom wall provided with a mirror lining, a rear wall provided with a mirror lining, said rear and bottomwalls being joined to and substantially intersecting said top wall and each other, and vertically adjustable corner clamps for paper having each at its outer end portion a screw connection'with said top wall and at its inner end portion an adjustment screw connection with said top wall, said top wall having corner recesses beneath said clamps to allow for adjustment thereof.

8. In a drawing table, the combination of a casing having a top wall provided with a transparent plate insertion, a. bottom wall having an inclination of forty-five degrees and provided with a mirror lining, and a rear Wall composed of two plane sections adapted 

